Home / 21,490,280.10-32,235,420.15-19,138,817.70

Finding the Fourth Proportional to 21,490,280.10, 32,235,420.15 and 19,138,817.70

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Solution

The fourth proportional to 21,490,280.10, 32,235,420.15 and 19,138,817.70 is: 28,708,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,280.10 : 32,235,420.15 = 19,138,817.70 : x
  2. Step 2: Convert to fraction form
    21,490,280.10/32,235,420.15 = 19,138,817.70/x
  3. Step 3: Cross multiply
    21,490,280.10x = 32,235,420.15 × 19,138,817.70
  4. Step 4: Simplify right side
    21,490,280.10x = 616,947,829,733,756.62
  5. Step 5: Solve for x
    x = 616,947,829,733,756.62/21,490,280.10
  6. Step 6: Final answer
    x = 28,708,226.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.